I was asked a question during a LaTeX how-to session which I did not have a good answer for. The person asking is interested in accessibility software which is able to read LaTeX formatted equations in a meaningful way.
Example:
\documentclass{minimal}
\begin{document}
\begin{equation}
x^2 + y^2 = z^2
\end{equation}
\end{document}
When the document is read by the Okular screenreader, it sounds like:
x two plus y two equals z two
but what we really are showing should sound like:
x squared plus y squared equals z squared
Such accessibility options are available for other equation editors, such as MathJax. This question was asked before, but closed due to unclear questioning. So allow me to produce specific questions:
Is there:
- A PDF reader which interprets mathematical conventions such as superscripts and symbols in a mathematically meaningful way?
- An external tool which reads equations out loud directly from the LaTeX style?
- A tool within LaTeX which can add comments to a PDF versions of the document which are invisible, yet listenable? (similar to alt text in images)